Shammanasaywha???
Hardwiring your modem?
You' ve got 3 major options for your internet connection.
1)360 to DSL/Cable modem. I hear it' s possible with DSL, but it' s never worked for mine or anybody elses I' ve set up. I' ve never had a problem doing it with cable.
2)360 to router to modem. This is your ideal setup in my humble opinion. Secure, & won' t lag, your only constraint is ethernet cable. And even at that, at 20 dollars for a spool of 100ft at Radio-Shack, there' s not much to complain about there either (short of crimping & attatching your own plug-ends). Modem to " internet-in" port on your router, and 360 to the second port on your router, (assuming your PC is already plugged into port 1)
3) Wireless connection. If you' ve got one in your house & feel like spending $100 on a shoddy wireless antenna,

then this solution is for you. Personally, I wouldn' t touch it.
Hopefully that helps a bit. You' ll have to elaborate & clarify more for some more help though.